diff --git a/homeassistant/components/proliphix/climate.py b/homeassistant/components/proliphix/climate.py
index 5f841441d59..797fd751197 100644
--- a/homeassistant/components/proliphix/climate.py
+++ b/homeassistant/components/proliphix/climate.py
@@ -60,6 +60,7 @@ class ProliphixThermostat(ClimateEntity):
     _attr_precision = PRECISION_TENTHS
     _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
     _attr_temperature_unit = UnitOfTemperature.FAHRENHEIT
+    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, pdp):
         """Initialize the thermostat."""